@inproceedings{CTT100868639, author = {Junyang Zhou and Joong-Sun Lee and Hiroyuki Suzuki and Takashi Obi}, title = {Channel Attention Based Convolutional Neural Network for Grading Smartphone Surface with Sparse Feature}, booktitle = {Conf.record of The 7th IIEEJ International Conference on Image Electronics and Visual Computing}, year = 2021, }